The nearest airport is San Francisco International (SFO), approximately 20 miles from downtown
San Francisco.

There are taxis, trains, or car rentals to take you into San Francisco.
The San Francisco subway, BART, runs regularly from SFO to downtown
for about $5 each way. (Yes, this is a city in America. Isn't that amazing?)
More practical information will also be sent when you have registered for the Face-to-Face meeting.